-/*
- percent-repeat-iterator.cc -- implement Percent_repeat_iterator
-
- source file of the GNU LilyPond music typesetter
-
- (c) 2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-#include "percent-repeat-iterator.hh"
-#include "repeated-music.hh"
-#include "input.hh"
+/*
+ This file is part of LilyPond, the GNU music typesetter.
-IMPLEMENT_CTOR_CALLBACK (Percent_repeat_iterator);
+ Copyright (C) 2001--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Erik Sandberg <mandolaerik@gmail.com>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-Percent_repeat_iterator::Percent_repeat_iterator ()
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "context.hh"
+#include "input.hh"
+#include "repeated-music.hh"
+#include "sequential-iterator.hh"
+#include "lily-imports.hh"
+
+class Percent_repeat_iterator : public Sequential_iterator
{
-
-}
+public:
+ DECLARE_CLASSNAME (Percent_repeat_iterator);
+ DECLARE_SCHEME_CALLBACK (constructor, ());
+ Percent_repeat_iterator ();
+protected:
+ virtual SCM get_music_list () const;
+ virtual void construct_children ();
+ virtual void next_element (bool);
+ virtual void derived_mark () const;
+private:
+ SCM child_list_;
+ int starting_bar_;
+};
+
+IMPLEMENT_CTOR_CALLBACK (Percent_repeat_iterator);
-Percent_repeat_iterator::Percent_repeat_iterator (Percent_repeat_iterator const & p)
- : Music_iterator (p)
+Percent_repeat_iterator::Percent_repeat_iterator ()
+ : child_list_ (SCM_UNDEFINED), starting_bar_ (-1)
{
- child_iter_p_ = p.child_iter_p_ ? p.child_iter_p_->clone (): 0;
- finish_mom_ = p.finish_mom_ ;
}
-bool
-Percent_repeat_iterator::ok () const
+void
+Percent_repeat_iterator::derived_mark () const
{
- return child_iter_p_;
+ scm_gc_mark (child_list_);
+ Sequential_iterator::derived_mark ();
}
void
Percent_repeat_iterator::construct_children ()
{
- Repeated_music * mus =dynamic_cast<Repeated_music *> (music_l_);
- finish_mom_ = mus->length_mom ();
- child_iter_p_ = get_iterator_p (mus->body ());
+ Music *mus = get_music ();
+
+ Music *child = Repeated_music::body (mus);
+ child_list_ = scm_list_1 (child->self_scm ());
+
+ Sequential_iterator::construct_children ();
+
+ descend_to_bottom_context ();
+ if (!measure_position (get_outlet ()).main_part_)
+ starting_bar_ =
+ robust_scm2int (get_outlet ()->get_property ("internalBarNumber"), 0);
}
+SCM
+Percent_repeat_iterator::get_music_list () const
+{
+ return child_list_;
+}
+// Arrive here when child processing has been completed. At that
+// point of time, we can determine what kind of percent expression we
+// are dealing with and extend the child list just in time before the
+// next iterator is getting fetched.
void
-Percent_repeat_iterator::process (Moment m)
+Percent_repeat_iterator::next_element (bool side_effect)
{
- if (!m)
+ // Do nothing if we already did our processing here.
+ if (!scm_is_pair (child_list_))
{
- Music_iterator *yeah = try_music (music_l_);
- if (yeah)
- set_translator (yeah->report_to_l ());
- else
- music_l_->origin ()->warning ( _ ("no one to print a percent"));
+ Sequential_iterator::next_element (side_effect);
+ return;
}
-
- if (child_iter_p_->ok ())
- child_iter_p_->process (m);
- if (finish_mom_ <= m )
+ Music *mus = get_music ();
+
+ Music *child = Repeated_music::body (mus);
+ SCM length = child->get_length ().smobbed_copy ();
+
+ int current_bar = -1;
+ if (!measure_position (get_outlet ()).main_part_)
+ current_bar =
+ robust_scm2int (get_outlet ()->get_property ("internalBarNumber"), 0);
+
+ SCM child_list = SCM_EOL;
+
+ string event_type;
+ SCM slash_count = SCM_EOL;
+
+ if (starting_bar_ >= 0 && current_bar == starting_bar_ + 1)
+ event_type = "PercentEvent";
+ else if (starting_bar_ >=0 && current_bar == starting_bar_ + 2)
+ event_type = "DoublePercentEvent";
+ else
{
- delete child_iter_p_;
- child_iter_p_ = 0;
+ slash_count = Lily::calc_repeat_slash_count (child->self_scm ());
+ event_type = "RepeatSlashEvent";
}
-}
-Moment
-Percent_repeat_iterator::pending_moment ()const
-{
- if (child_iter_p_->ok ())
- return child_iter_p_->pending_moment ();
- else
- return finish_mom_ ;
-}
+ int repeats = scm_to_int (mus->get_property ("repeat-count"));
+ for (int i = repeats; i > 1; i--)
+ {
+ Music *percent = make_music_by_name (ly_symbol2scm (event_type.c_str ()));
+ percent->set_spot (*mus->origin ());
+ percent->set_property ("length", length);
+ if (repeats > 1)
+ {
+ percent->set_property ("repeat-count", scm_from_int (i));
+ if (event_type == "RepeatSlashEvent")
+ percent->set_property ("slash-count", slash_count);
+ }
-Music_iterator*
-Percent_repeat_iterator::try_music_in_children (Music *m) const
-{
- return child_iter_p_->try_music (m);
-}
+ child_list = scm_cons (percent->unprotect (), child_list);
+ }
+ scm_set_cdr_x (child_list_, child_list);
+ child_list_ = SCM_EOL;
-Percent_repeat_iterator::~Percent_repeat_iterator ()
-{
- delete child_iter_p_;
+ Sequential_iterator::next_element (side_effect);
}
projects / lilypond.git / blobdiff